ICONE19-44144 Gamma Spectra Measurement and Calculations Using Different Data Libraries on Nickel and Iron Benchmark Assemblies

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The leakage gamma spectra measurements have been studied on benchmark spherical assemblies-nickel and iron spheres with diameter of 50 cm. The Cf-252 neutron sources with different emissions were placed into the centre of sphere. The fine structure of gamma spectrum was measured by HPGe spectrometer. The gamma energy range of spectrometer was from 0.1 to 10 MeV. The experimental data were compared to results of transport calculations based on different evaluated nuclear data libraries (ENDF/B-VII.0, ENDF/B-VI.3, JENDL 3.3, JENDL 4.0, JEFF-3.1.1, TENDL-2008, TENDL-2009 and CENDL 3.1). The continuous energy Monte Carlo transport calculation code MCNP-4C was employed for the calculations. Main observed differences between experiments and calculations are discussed.

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